The walls of the iconic dome are hollow and have a secret stairway.

Tucked away on an empty wooded lot in suburban Oklahoma City lie the remnants of an abandoned circus camp.

Built from oil field parts and resembling a teepee, this abandoned mid-century church is hoping for a comeback.

A memorial to victims of the Oklahoma City bombing.

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

Nature's biggest mammal swims in landlocked Oklahoma.

Elvis's own personal tropical hideaway.

This 40-room dwelling tucked within a cliff was built by the basin's prehistoric residents.

Formerly known as National D-Day Museum, this collection commemorates the battles of Normandy and WWII.

This Memphis recording studio launched the careers of Jerry Lee Lewis, Johnny Cash, and Elvis Presley.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

Three bronze beauty queens welcome you to “Miss America University.”

The largest cattle market on earth holds live auctions open to the public every week.

After being abandoned for decades, Oklahoma’s first air-conditioned theatre was reborn in the new century.

An indoor botanical garden for tropical plants looks like a giant cylinder lying on its side.

In Oklahoma City's Bricktown, there's a street that don't use jelly.

A crew of die-hard train buffs spent decades turning a defunct stretch of railway in Oklahoma City into a museum now home to over 50 antique and restored trains.

This giant mimetic milk bottle has encouraged Route 66 travelers to choose dairy since 1948.

The largest single-building tribal cultural center in the U.S. is an expansive museum in Oklahoma City.

This museum holds not just a world class collection of firefighting artifacts and gear but even the region's first fire station itself.

The surprising home of the iconic Santa Monica Pier Ferris Wheel.

Sitting in the arguable birthplace of the Wild West, this museum holds the largest collection of bronco busting bric-a-brac in the world.

Named for the 39 tribes that live in Oklahoma, this restaurant's menu deliciously highlights local flavors.

Very likely the only museum in the world that celebrates the glory of the humble banjo.